Your body has a "highway" system that sends blood to and from your body parts. It's called the circulatory system and the roads are called arteries and veins. Arteries, which usually look red, carry ...

Medically reviewed by: Mary L. Gavin, MDThis link opens in a new tab Learn About Behavioral Health (Psychology and Psychiatry) at Nemours Children's HealthThis link opens in a new tab If you ever ate ...

Medically reviewed by: Larissa Hirsch, MDThis link opens in a new tab Learn About Behavioral Health (Psychology and Psychiatry) at Nemours Children's HealthThis link opens in a new tab The difference ...

What’s Happening in My Body? Even though it’s called week 1 of your pregnancy, you’re not actually pregnant yet! This first week of pregnancy is your menstrual period, and the week before conception ...

Medically reviewed by: Elana Pearl Ben-Joseph, MDThis link opens in a new tab Learn About Asthma Care at Nemours Children's HealthThis link opens in a new tab Kids with EIA might begin having symptoms ...

Medically reviewed by: Melanie L. Pitone, MDThis link opens in a new tab Learn About Primary Care Pediatrics at Nemours Children's HealthThis link opens in a new tab Pinworms are tiny worms that can ...

A girl's periods can cause some uncomfortable symptoms. Most of the time, there's no reason for concern. But some problems need care from your doctor. Here's how to cope with most period problems.

What Is Diabetes? Diabetes happens when the body can't use glucose normally. Glucose is a type of sugar that comes from the food we eat. It's the main source of energy for all the body's cells.

Medically reviewed by: Amy W. Anzilotti, MDThis link opens in a new tab Learn About Pediatric Neurology (Brain & Nervous System Care) at Nemours Children's HealthThis link opens in a new tab Chiari I ...

Medically reviewed by: KidsHealth Medical ExpertsThis link opens in a new tab Learn About Primary Care Pediatrics at Nemours Children's HealthThis link opens in a new tab The heart is a pump, usually ...

What Is Fetal Alcohol Syndrome (FAS)? Babies whose mothers drank alcohol during their pregnancy can be born with birth defects and developmental disabilities. The problems that can happen when babies ...

What Does the Heart & Circulatory System Do? If you've ever wondered how your heart works, this movie has the answer. And special thanks to the Fred J. Brotherton Charitable Foundation for supporting ...